Neurological disorders are medical conditions that affect the nervous system, which includes the brain, spinal cord, and nerves. These disorders can disrupt normal brain function, leading to issues with movement, communication, and cognitive abilities. Common examples include Alzheimer's disease, Parkinson's disease, and multiple sclerosis. The causes of neurological disorders can vary widely, ranging from genetic factors to infections or injuries. Symptoms may include headaches, seizures, memory loss, and difficulty with coordination. Diagnosis often involves imaging tests like MRI or CT scans, and treatment options may include medication, therapy, or lifestyle changes to manage symptoms and improve quality of life.